DIN 65438-1993 航空航天.使用温度315℃以下公称抗拉强度1100MPa的钛合金制短螺纹长度的MJ螺纹紧公差十二角头螺栓
Aerospace; bihexagonal head bolts, close tolerance, with MJ-thread, short thread length, in titanium alloy; nominal tensile strength 1100 MPa, for temperatures up to 315 °C
The document contains specifications pertinent to manufacture and use such as dimensions and designation, material, thread, surface treatment, marking and technical specifications.